Changes in the upper turning point due to magnetismIt was observed that the p-mode power is substantially suppressed in magnetic regions. One possible explanation is that the upper turning point, the acoustic cut-off point of the solar p-modes is lowered in the presence of a magnetic field. A related possibility is that the attenuation length scale in the evanescent region is reduced in the presence of a magnetic field. It is likely that the observations sample a different position in the evanescent tails of the eigenfunctions in magnetic regions because of different temperature structures in these regions. A model is used to quantify the first of these effects.
Document ID
19960014126
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jain, Rekha (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Hindman, Bradley W. (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Zweibel, Ellen G. (Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Date Acquired
August 17, 2013
Publication Date
June 1, 1995
Publication Information
Publication: ESA, Proceedings of 4th SOHO on Helioseismology. Volume 2: Posters